I was trying to diagnose network problems on this machine and found that Ubuntu 12.04 will show the following with ifconfig after a little while:
$ ifconfig eth0
eth0 Link encap:Ethernet HWaddr 1c:75:08:5a:9f:b1
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:4294869934 errors:4294383121 dropped:4294772570 overruns:4294869933 frame:4294967295
TX packets:4294869933 errors:4294577844 dropped:0 overruns:4294869933 carrier:4294967295
collisions:4294480481 txqueuelen:1000
RX bytes:4294869934 (4.2 GB) TX bytes:4294869933 (4.2 GB)
Interrupt:45
eth0 is the wired ethernet and is not in use on this machine. The machine is only using wlan0. I don't know if the network issues I am seeing on the machine relate to this or not. I'm not sure when this came up-- -55, -56, -57 and -58 all exhibit the problem (though, I don't have a simple reproducer-- it seems to come up after using the network for a while). -23 didn't produce the problem with the testing I performed (ie, within the same amount of time that it would show up with the other kernels). linux-generic-lts-saucy also didn't show it, but I couldn't run that kernel for very long because the nvidia-304 driver didn't work properly there.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-57-generic-pae 3.2.0-57.87
ProcVersionSignature: Ubuntu 3.2.0-57.87-generic-pae 3.2.52
Uname: Linux 3.2.0-57-generic-pae i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices: aplay: device_list:252: no soundcards found...
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: i386
ArecordDevices: arecord: device_list:252: no soundcards found...
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/hwC1D1', '/dev/snd/hwC1D2', '/dev/snd/hwC1D3', '/dev/snd/pcmC1D3p', '/dev/snd/pcmC1D7p', '/dev/snd/pcmC1D8p', '/dev/snd/pcmC1D9p', '/dev/snd/controlC0', '/dev/snd/hwC0D1', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Mon Dec 9 11:24:53 2013
HibernationDevice: RESUME=UUID=400a17a1-efbe-472a-843d-52020a511b39
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: LENOVO 0877
MarkForUpload: True
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-57-generic-pae root=UUID=ee0834ed-203e-41cc-9b74-b509a3dc8970 ro quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.2.0-57-generic-pae N/A
linux-backports-modules-3.2.0-57-generic-pae N/A
linux-firmware 1.79.9
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: Upgraded to precise on 2013-03-30 (253 days ago)
dmi.bios.date: 11/19/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 31CN28WW(V1.09)
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Base Board Product Name
dmi.board.vendor: LENOVO
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnLENOVO:bvr31CN28WW(V1.09):bd11/19/2010:svnLENOVO:pn0877:pvrIdeaPadU460:rvnLENOVO:rnBaseBoardProductName:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: 0877
dmi.product.version: IdeaPad U460
dmi.sys.vendor: LENOVO
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